Automatic dispenser.



F. W. ADSIT.

AUTOMATIC DISPENSER.

APPLICATION FILED DEC. 4. 1916.

3 SHEETS-SHEET l.

Patented Mar. 4,1919.

F. W. ADSIT.

AUTOMAHC DISPENSER.

APPLICAHON FILED DECA. 19m.

1,296,032. 7 Patented Ma1'.4,1919.

3 SHEETSSHEET 2- F. W. ADSH.

AUTOMATIC DISPENSER. 4 APPLICATION FILED DEC, 4.19%. v I 1 ,296,032, Patented Mar. 4, 1919.

3 SHEETS-SHEET 3.

EMZIZK J MAJJZ Z.

' INVENTOR. BY W A TTORNEY ms mums Pans c0. mmmumo. h vii/11107011,: c.

25 celLa source of light adapted to actuate the mounted with the chamber'fz, so that when To all whom it may concern:

UNITED STATES PATENT OFFICE.

FRANK w. AJJSI'I, or sr. 1 AUL, MINNESOTA.

AUTOMATIC nisrENsEn.

Be it known that 'I, FRANK W. Aosrr, a citizen of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented certain new and useful Improvements in Automatic Dispensers, and in this specification and in the drawings I show it as applied to a liquiddispenser, although the same invention may be applied to dispense any commodity that can be suitably handled by automatic mechanism.

One object of my invention is to provide means whereby the blocking or shutting off of rays, or vibrations may be used to operate vending or dispensing mechanisms.

Another object of my invention is to provide means in asoa dispenser, having a constant level of liquid soap in a chamber, for momentarily raising the level in the chamber so that a certain amount of soap will flow out of an aperture provided for that purpose. 7

Another object of my invention is to proride in a Vending mechanism a selenium selenium cell, dispensing means adjacent to the selenium cell and source of light, so that a person extending a hand or receptacle toward the dispensing means will interfere with the reception of light on the selenium cell, thereby increasing its electrical resistance and operating an electrical mechanism that will give, through the dispensing means, a definite amount of the goods so handled.

With these and incidental objects in View the invention consists of certain novel features of construction and combination of parts, the essential elements of which are hereinafter describedwith reference to the drawings which accompany and form a part of this specification. f

Figure 1 is a schematic circuit embodying my invention, Fig. 2 a plan View of one embodiment of my invention, and Fig. 3 a cross section of Fig, 2 takenon the line A A, Fie-2-"-IJ A In the drawings Fig. 1 discloses schematically my invention as applied to a soap dispenser, in which 1 is a supporting bracket having therein a reservoir 2 for liquid soap fed from the bottle 3, so as to maintain a substantially constant level in the reservoir 2. y 7

A weighted plunger 4 is reciprocally Specification of Letters Patent.

Patented. Mar. 4, 1919.

Application filed December 4, 1916. Serial No. 135,266.

actuated' by the solenoid 5 overcoming the V strength of, the spring 6, the plunger will be depressed into the liquid soap, thus causing a portion to overflow and run out through the aperture 7 A source of electrical power is applied to the wires 8 and 9 and the'selenium cell 10 is connectedthereto by wires 11 and 12, the winding of the relay 13 and 14: connecting the relay 13 and the selenium cell in series across the power leads. Y

A lamp17 is also connected to the power leads 8 and 9, and the light therefrom is gathered by the lens 16 and focused through the aperture .15 on the selenium cell, the lamp'and the selenium cell being mounted in tubular mountings 18 and 19, respectively, to

amount that the relay 13 is maintained in an actuated position with the contact 2.0

open. a If by any means, such as a person placing their hands below the aperture 7 the light from the lamp 17 is blocked from the sele-. nium cell 10, its electricalresistance will be increased, the contact 20 willbe made and the solenoid 5 placed across the power leads 8 and 9, the action of the solenoid will draw the plunger 4: down into the liquidsoap in the chamber 2 and expelling a certain amount of the liquid soap through the aperture 7, the plunger-1 remaining in its lower position as long as the light is blocked off.

When the obstruction of the light is rempved, the selenium cell is again actuated by light from the lamp, its resistance lowered, the relay 13 actuated, the contact 20 opened, theplunger 4 lifted by the spring 6, and the level of the liquid in the reservoir 2 restored by the liquid in the bottle 3 in a man: ner well-known. V v 1 Having described the operation of the schematic circuit1, I will now describethe mechanism used in the actual embodiment of the invention in a soap dispenser. The frame 21, Fig. 3, which is preferably a-casting, has a chamber 22, adapted to re. ceive a bottle 23, which is clamped with a band 24 and locked with the lock 25, Fig. 2, to a lug 26 on the frame, and'has also an opening in which is screwed or'otherwise fastened a'plug 27, Fig.3, havingan aperture in which the stem 28, carrying core 29' and a plunger 30, is slida-bly mounted; V

The spring 31, serves to normally hold the plunger 30 in the position shown 1n Flg. 3.

The solenoid 5, Figs. land 8, is mountedcertain amount of liquid to flow outof the aperture 7, Figs. 1" and 3, the level of the liquid at tlidpoint 82 being maintained by liquid in the bottle 23, and it is a simple matter to replace the bottle 23. when empty with a new bottle full of liquid soap. The relay 13, Fig. 1,, is shown mounted in 3 to the frame. 21 by the screw 33..

Arms 34, forming a part of the casting, extend outwardly and downwardly, and carry the tubular mountings 18 and 19, Fig. 2, so the light from the lamp 17 is projecte'd on to the selenium cell 10, as already described.

' A cover 35, Fig. 3, is provided to keep dust and moisture from the relay 13, and

the solenoid 5, and is closed in any suite able manner, and an insulat ng bushing 36.

is provided, whereby connecting wires may be brought to the lamp and selenium cell through cored holes 87. V V Apc rtures 38 are provided for mounting the frame to the wall and the entire soap dispenser is hence selfi-contained. V

.Vhile I have described my invention and illustrated it in one particular design, do not wish it u 1 derstood that I limit, myself to: this construction, as it is evident that the application of my in ention may be varied in many ways within the scope of the following claims.

Claims:

1. In automatic dispensers the: combinertion of ource, o lig t, means h eeleetrieel resi t n e a ies n oe rdanee with the amount of light it receives, automatic means for dispensing commoditieaandan c ri a roi it incl ding sai electri al resistancefvarying meansi f'or operating said automatic dispensing means.

In automate dispensers the combinetion of a selenium cell, automaticdispeiis iilg means, an electrical cilciiitdneludi'ig said sele i cell and adapted to mil-e1 said re. ie d mmls in? .dlioing' light o aid sele in .l.

IIl tomatic dispen e s the comb naion oi automatic di pensing meals, an elecri al rcuit d pted to.v .o ii iicflisaidaut lnatie dispensing means, mea s in l ded i said electrical circuit having its Q QC l' Q llrr sistanee variable With t e anlo nt of light falling thereon; a d e S ur e f'liglit normally projectiing light rays on said electrical resistance varying means, so positioned that en. a han r on in ertendee were said automatic dispensing means, the amount of light received on'said varying electrical resistance means willbe modified.

4. In automatic dispensers the combination of automatic dispensing means, an electrical circuit adapted to control said automatic. dispensing means, means included in said electrical circuit, whose resistance to electrical current varies with the amount of certain rays received thereon, and means whereby said rays maybe projected on to said means whose electrical resistance is variable. I

,111 a liquid disp nse the combination of a liquid ham r, an aper e eadin from said liquid chamber, liquid dispens ing means for causing the flow 0t liquid from said chamber thr ugh said p rture el ctric l m an f r perat ng aid iq iddispensing means, controlled by a circuit having therein a resistance variable with the am unt iigh reeei ed th re n, and mea for projecting light on said variable resist- 6. In a liquid dispenser the combination of a liquid chamber, an aperture therein, liquid dispensing means for causing a certain am nt o liquid t flow from said p u e-e r al m ans. for actuating said liquid dispensing means and a cir it ior ontrolling said e c rical mea s ncluding a resistance variable with the amount of rays recei e there n, nd a sou ce 'oli".rays associated with said iable resistanc 7. In a liq d dispenser-tlie ombin n of a li uid ch mber, m ans f ma ntain t e levelffof liq id in an hamber substn tially uniform, a "p nger e soeited wi h said liquid ohem o fr, n rmally positloned anti lly out of the iquid in saidiquid chambenbut adapted to be, lowered into'the l quid of id liquid ham er; an orifieelead ing f om said quid chamber, so positioned asto be above the level of the liquid when said plunger is aised, and below the leve of the .iqui hen aid p unger is lowe ed, i nsior ooiit j' ling saidplunge and elee trioal means for actuating saidplunger actuating mean including a 'esfistan e variable with t e am unt oflightreys received thereon, and means for'projeeting a different amo n oi; ight-on said variabl esistan e .a said dfd e ser is a tuat theiiuiid normal e i i ions, i' i i no a: are:

8. In automatic d sesam meme tion of a frame having two arms extending therefrom, a resist nee arying Withfl dawn o li h recei ed the l i. eerri by .01 of said arms; m ans, or projec ing 1i h on said resistance ca ied by the oth of resins sa arms; and A q a pensing commodities c ntr lled by s id r elec rica ineaiis' sistance.

9. In, automatic dispensers the. combinat on of a immature erms xten ing outwardly from said frame, a selenium cell mounted in one of said arms, a lamp mounted in the other of said arms and adapted to project light on said selenium cell, means adapted to deliver commodities at a point substantially between said lamp and said selenium cell, and controlled by the resistance of said selenium cell, so that the diminishing of light received by said selenium cell, caused by introducing any object between said selenium cell and said lamp, will actuate said dispensing means.

FRANK W. ADSIT.

Copies of this patent may be obtained for Me cents each, by addressing the "Commissioner of Patents, Washington, D. G." 

